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2 Commits

Author SHA1 Message Date
David Bauer
00b194871c ramips: aw9523: add can_sleep flag for GPIO chip 
The GPIO expander is connected via I2C, thus the can_sleep flag has to
be set to true. This should fix spurious "scheduling while atomic" bugs
in the kernel ringbuffer.

Signed-off-by: David Bauer <mail@david-bauer.net>
 2021-12-29 03:43:03 +01:00
David Bauer
38db2f12d6 ramips: add AW9523 I2C GPIO expander driver 
This adds a driver for the AW9523 I2C GPIO expander.

This driver is required to make LEDs as well as buttons on the Tenbay
T-MB5EU-V01 work.

This driver already had several upstream iterations. I'm working to
push this driver to mainline.

Ref: https://patchwork.ozlabs.org/project/linux-gpio/list/?series=226287

Signed-off-by: David Bauer <mail@david-bauer.net>
 2021-06-27 21:40:15 +02:00